Hinge



Jan. 8, 1929. 1,698,390

R. F. CARPENTER' 'ET AL HINGE Filed Oct. 24. 1921 vfr?. i.

l door hinges, and more vparticularly hingesy `Patented Jan. 8, 1929.

UNITED sTArl-:s PATENT :oFFicEgf-- ROBERT E. CARPENTER AND THOMASANDERSON, or CLEVELAND, OHIO, AssrGNoRs t To THE sANYMETAL kOE OHIO. Y

rRoDUoTs'coMPANY, or CLEVELAND, OHIO, A CORPORATION Y HINGE.

Application filed AOctober 24, 1921. Serial No. 509,878.V

This invention relates to improvements in for doors which should swingautomatically to open position as for instancetoilet doors The objectsof this invention are to provide a doork hinge ofthe gravity roller typewhich always returns by gravity to inner open position; which can bereadily adjusted about its vertical axisto correct m1salignment ofdoors; andnally to provide a hinge of simple construction and yetofextreme durability. y

Other objects will appear from ,the following description andclai-mslwhen considered together with the accompanying draw- Fig. 1shows the door post and swinging door in-elevation and the hinge memberspartly in section; Fig. 2 is a front elevation of thelower hinge memberof Fig. 1; Fig. 3 is a plan View ofthe lower hinge member;

. vand Fig. 4 is a front elevation of the lower hinge member dwellportion.

f Referring to the present illustration, 1 1ntype, comprises the doormember 3 secured*` 1n any suitable manner to the top of the doorandhaving an `upwardly extending pin 4 for rotatable engagement in thesocket 5 of the fixed member 6 which issecured to the door frame. Properspace is allowed between the upper hinge members to permit upwardmovement of the door, as will later appear. Y

The present invention relates more particularly to the lower hinge whichcomprises the door member 7 suitably secured tothe door, as for instanceby means of the screws 8 secured throughy ears 9 on the plate portion10. The ears 9 embrace the two sides of the door. Attached to orintegral withV the plate 10 is a dependingy pin 11, and spaced ears 12also provided upon the plate portion 10 afford bearing support for thepin 13 upon which turns the anti-friction roller 14. The plane ofrotation of this roller is normal to that of the door.

The stationary part or the lower hinge comprises a member 15 secured tothe door provided without` the rest or frame and/a cam member 16 mountedupon member 15. `The member 115 may'followthe type of str'uotureshown inthe application@ above referred to or may be of any other` suitableform, as for instance, a pressed metal structurewith flanges 17embracing and secured to the door frame. The tubular portion 18 of thepressed metal member has means of thescrews 22; Upon loosening theI Yscrews 22 the cam member can be adjusted about itstubular supportjfor avpurpose to r' be later explained. y Thel cam member is provided with :aspiral cam surface 23 inclined vuniformly in the zy same direction fromend to end of' said Vsuri face yand extending approximately 180 aroundthe axis, the cam shown in the drawi ling extending a little more than180. This arrangement enables the door, to be, swung through aV full 180and because the inclina- .tion of the cam is in one direction from enddicates the door post or frame and 2 a door to end the door, whenallowed to move freely over the cam, always moves clear to they endofthe cam surface and does not stop at any; intermediate position.` Thehinge parts are so placed upon the door and door support that the finaldoor position with the-roller atthe extremel low end ofthe cam will bethe inner open position of the door when it is inside of the toiletcompartment and substantially parallel to its side wall. The high partof the cam, at the left in Fig. 2, represents the position of the doorin another or outer open position standing straight out into thepassageway. However, the cam may extendfmore than 180, even as much as270, in which the outer Open position of the door would be backapproximately parallel with the lfront wall ofthe neighboringcompartment.

' Whatever the outer open position of the` door is, the door will alwaysreturn to the inner closed position when released and allowed to moveJfreely along the cam.

The cam shown in Fig. 4 is a simple cam of the kind just described withno intermediate position in which the door can be brought to rest. Ifdesired, the cam surface at some suitable intermediate point may beprovided with a dwell Aportion. 23, placed v orexample at approximately`90" from the low endrfoi4 the cam so thatsaid-dwellcoi'- i responds to`closed door position. Byfmov-` ing the door until the roller reaches`this `dwell portion the door may be, brought to? .rest and willVremain." inV "closed"` positie However, when the door ispushedfa-"small" amount in either direct-ion from the Idwell andreleased it moves freelyby a single inotion completely to inner lopenposition.`

When the plaincann without `the dwell,` as

shown'in Y Fig; 4, is used, the door` maylbe` held` in. closed position:by suitable'flatches c connecting it to its companionfjdoor ina pairlorto the` door: single door.

casing in thecasefof .a

Y Thehinge described answers every-.re-

quirement for hinges for toilet compart` ments.4 -The `doorfalwaysfstands normally 1 ininner open position indicating at a glancewhether or not thecompartment is occupied "One entering the; compartmentmay readily swing the door-to 'closed position and. either latchiit'asdescribed or stop it on the-dwellin-Fig. 2. When leaving the'compartment ""theldoorispushed outwardly `toany outer :open position andwhen released swingsback and `.passes thedwell "23%. iff` used, Vmovingcompletely to inneropen position.' It there-p` forev requires .noparticular `attention by one using the compartment and yetV alwaysindicates whether the compartmentisroccupiedor not. Nolfmatter how thedoors are manipulated itA is impossible to leave 'themstanding any outerVopen position so` that there is neverv any obstruction-in `the*'passagewayn However, if ever desirable,`

thehi-nge may have its `cam surface inclined :in the opposite. directionwith a 'constant tendency tofmove toward outer' open posi- 1 Asignatures.

ROBERT F. CARPENTER tion.` y i y The arrangement also avoidsan necessityof locks or latches for holdingt e `door in inner open position `whencleaning'or other work 1s to be done 1n the compartment..

i Obviouslythe inclination orspirality off position by 'the screws 22.

turned up-side-down.

E Havingdescribed our invention, we claim :V Y i A gravity hing for:doors-of ,booths or the Y like, comprising two cooperative'r-elativelyrotatable parts, one! thereof` having a vgen1` erally continuousinclineducamymember `of n uniedireotional v`pitch provided ati-thisopposite ends respectivelywith a high point andra @lowfpoint and betweenthem with a dwell, and the other` parthavfingua member *adapted i to .fcooperate with` said cam* mein- 1.

ber, said members travellingone along .the

iother `as .the door swings,` one i of" said parts ibeingadapted forattachmentfto` the booth door', andsthe other part being adaptedr for.attachment Sto a relatively :stationary ele ment and .thereby sopositioned, as to enable thel doortobelocated: and maintained in closed`positionrby'` said .dwell `and tofbe moved to high and low `openpositions at opposite ends of said camr member, whereby.4

upon releasefof said door wheninthe high "open position it swingsbygravitythrough the closed position to the-low open position.

In testimonywhereo weghereby 4ailix our THOMAS?. ANDERsoN. u

